Portion of an expandable armband



FIG. 1 is a top isometric view of a portion of an expandable armband showing our new design.

FIG. 2 is a bottom isometric view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a front elevational view thereof.

FIG. 6 is a rear elevational view thereof.

FIG. 7 is a left side elevational view thereof; and,

FIG. 8 is a right side elevational view thereof.

Stippling and contour lines shown in the drawings indicate areas of light and shadow, and contours of the portion of the expandable armband, and do not indicate surface decoration. In the drawings, the broken lines illustrate portions of the expandable armband that form no part of the claimed design. 

CLAIM The ornamental design for a portion of an expandable armband, as shown and described. 